Theoretical P-Wave Travel Times

Sunday, July 10, 2011 at 00:57:12 UTC

Theoretical P-wave Travel Times

This map shows the predicted (theoretical) travel times, in minutes, of the compressional (P) wave from the earthquake location to points around the globe. The travel times are computed using the spherically-symmetric IASP91 reference earth velocity model. The heavy black lines shown are the approximate distances to the P-wave shadow zone (103 to 140 degrees).

Theoretical P-Wave Travel Times
City Distance
Travel Time
Arrival Time
Tokyo, Japan 3.70 0:54.6 0:58:06.6Pn
Beijing, China 20.94 4:39.7 1:01:51.7P
Agana, Guam 24.50 5:16.0 1:02:28.0P
Anchorage, Alaska 46.57 8:24.2 1:05:36.2P
Kathmandu, Nepal 49.08 8:43.7 1:05:55.7P
Honolulu, Hawaii 52.97 9:12.9 1:06:24.9P
Seattle, Washington 65.6510:40.6 1:07:52.6P
Brisbane, Australia 65.8210:41.7 1:07:53.7P
Moscow, Russia 67.2910:51.1 1:08:03.1P
San Francisco, California 70.8911:13.5 1:08:25.5P
Los Angeles, California 75.7911:42.4 1:08:54.4P
Bergen, Norway 76.0411:43.8 1:08:55.8P
Phoenix, Arizona 80.2312:07.0 1:09:19.0P
Golden, Colorado 80.3612:07.7 1:09:19.7P
Duluth, Minnesota 82.0912:16.9 1:09:28.9P
Albuquerque, New Mexico 82.6112:19.5 1:09:31.5P
Wellington, New Zealand 84.0212:26.8 1:09:38.8P
London, England 85.2812:33.2 1:09:45.2P
Wichita, Kansas 86.1512:37.5 1:09:49.5P
Rome, Italy 88.6912:49.7 1:10:01.7P
St. Louis, Missouri 89.1812:52.0 1:10:04.0P
Ottawa, Canada 89.8112:54.9 1:10:06.9P
Bangor, Maine 92.6213:07.9 1:10:19.9P
Knoxville, Tennessee 93.8013:13.4 1:10:25.4P
Boston, Massachusetts 94.1113:14.8 1:10:26.8P
New York, New York 94.5313:16.7 1:10:28.7P
Brownsville, Texas 94.6213:17.1 1:10:29.1P
Philadelphia, Pennsylvania 94.7613:17.7 1:10:29.7P
Washington, D.C. 94.9413:18.6 1:10:30.6P
Mexico City, Mexico 98.1613:33.0 1:10:45.0P
Nairobi, Kenya 103.7313:57.7 1:11:09.7Pdiff
Miami, Florida 104.5714:01.5 1:11:13.5Pdiff
San Juan, Puerto Rico 117.3514:58.2 1:12:10.2Pdiff
Lima, Peru 135.7616:19.9 1:13:31.9Pdiff
Palmer Station, Antarctica 146.5419:36.6 1:16:48.6PKPdf

Travel Time Information and Calculator

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver